Device for cleaning passages



Oct. 30, 1934. w H, CULLEN 1,979,143

DEVICE FOR CLEANING PASSAGES Filed April 8, 1933 23w 1 5 Wm F1 a Patented Oct. 30, 1934 UNITED STATES PATENT OFFICE 2 Claims.

My invention consists in a new and useful improvement in cleaning devices and is designed particularly to provide means for cleaning chimneys, flues and other ducts in which soot or other refuse may become deposited. The particularly novel and useful features of my improved device 'are the means which I provide to render the device adjustable to passages of different crosssectional area, and the means to insure constant operative contact between the brush, or cleaning member, and the surface being treated, in any and all conditions of adjustment of my device. While I have illustrated in the drawing filed herewith and hereinafter fully described one specific embodiment of my invention, it is to be distinctly understood that I do not consider my invention limited to said specific embodiment, but refer for its scope to the claims appended hereto. e

In the drawing: Fig. 1 is a side elevation of my device. Fig. 2 is a rear elevation. Fig. 3 is a horizontal section on line 3--3 of Fig. 1.

Fig. 4 is a modified form of brush carrier. As illustrated in the drawing, my cleaning device has the pole 1 to which may be attached additional sections 1a by straps 2, to adjust the device for operation in chimneys of different heights. The brush 3 is mounted on the pole 1 at its lower end by the bracket 4, bolts 5 fastening the brush 3 to the bracket 4 and bolts 6 fastening the bracket 4 to the pole l. I mount the roller 7 0n axle 7-11 in a fork formed by the bars 8 having curved upper ends 9 merging together in the arch 10. This fork'is adjustably pivoted upon the pole 1 by means of the pin 11 passed through registering holes 12 in the bars 8 and holes 13 in the pole 1. It is to be noted that the portions 8-11 of the plates 8 between the pivot pin 11 and the axle 7a, are angularly inclined relative to the remainder of the plates 8, in a direction away from the brush 3. The parts are so related that the brush 3 and roller 7 extend respectively from opposite sides of the pole 1. "The plates 8 have a yoke 14 through the top of which passes loosely the bolt 15 with head 16, which is mounted in pole 1. The expansion spring 1'7 coiled about bolt 15 has one end bearing against the yoke 14 and its other end received in seat 18 in pole 1. Attached to arch 10 is the cord 19 passing through a bore 20 in the pole 1 and about a pulley 21 to facilitate its movement. This cord 19 may be extended conveniently to the point from which my device is being operated.

in Fig. 4, may be utilized to extend the face of the brush 3 to a greater extent from the pole 1. From the foregoing description of the details 0 of construction of my device, its use and operation will be obvious. The pivot pin 11 is fitted through a pair of the registering holes 12 of the plates 8 and one of the holes 13 in the pole 1, so as to adjust the roller 7, when it is in normal position, so as to press the brush 3 against the surface of the particular chimney to be cleaned. It is obvious that the various adjustments of the arms 8 relative to the pole 1, by fitting the pin 11 through the various sets of holes 12 and 13, fit my device for operation upon chimneys of various sizes. Should the various adjustments of the arms 8 be insufficient, the bracket 4 can be replaced by the bracket 4-a, to afford additional ranges of adjustments. The device, being properly adjusted, can be inserted into the open end of the chimney by drawing the cord 19 upwardly and causing the bars 8 to rock on the pin 11, against the action of the spring 17, and thus reduce the distance between the face of the brush 3 and the periphery of the roller 7. When the device has been inserted into the chimney and pressure upon the cord 19 has been released, the action of the spring 17 upon the yoke 14 and arms 8 causes the arms 8 to press apart the roller 7 and the brush 3, thus forcing the face of the brush 3 against the wall of the chimney. The device is then reciprocated to cause the brush to clean the surface on which it bears.

Having described my invention, what I claim is:

1. In a passage cleaner, the combination of a pole; a brush so mormted on said pole as to extend outwardly from one side of said pole; a rollercarrying arm so pivoted on said pole as to project its roller outwardly from the other side of said pole; an expansion spring. mounted between said arm and said pole; and an operating cord attached to said arm, passing through a pulley on said pole, and adapted to rock said arm to vary the distance between said brush and said roller.

2. In a passage cleaner, the combination of a pole having a series of holes; a brush so mounted on said pole as to extend outwardly from one side of said pole; an arm comprising parallelly disposed plates having series of registering holes; a pivot pin passing through any one of the series of holes in the pole and any pair of said registering plate holes; a roller so mounted on said arm as to extend outwardly from the other side of said pole; and spring-pressed means between said pole and said arm, adapted to project said roller outwardly from said pole.

WILLARD H. CULLEN.

The modified form of bracket 4-a, illustrated Q 

